Advanced 5G Technologies for Mission-Critical Public Safety Communications: A Contemporary Literature Review

The integration of fifth generation (5G) wireless technologies into public safety communications marks a fundamental shift from traditional narrowband systems toward advanced broadband capabilities. This literature review examines recent technological advancements in 5G-enabled mission-critical communications, focusing on network slicing implementations, edge computing architectures, and standardization progress through 3GPP Release 17 and beyond. Through systematic analysis of recent deployments and technical innovations from 2022-2024, this review identifies critical enabling technologies including standalone 5G core networks, dedicated spectrum strategies, and interoperability frameworks. The synthesis reveals that successful implementations leverage network slicing for guaranteed quality of service, achieve sub-millisecond latencies through edge computing, and maintain seamless integration with legacy systems. These findings contribute to understanding the technological landscape shaping next-generation public safety communications.